Official summary: "High school seniors Aria, Emily, Spencer, and Hanna barely survived their most recent encounter with A. And it’s not over yet. . . . The police don’t believe that the real A is still out there, but the girls know what — and who — they saw. If they don’t track down this final tormentor soon, A will silence them forever." (http://alloyentertainment.com)

How I obtained the book: Pre-ordered for $14.68 on Amazon using a gift card I earned through Plink.com.

My commentary: How is this series still going? I guess it must be everyone else's guilty pleasure like it is mine. The ending of this book was totally predictable to me. I hope the final book in the series (#16) is more surprising.